Apparatus for constructing floors.



A. L WIDMER. APPARATUS FOR CONSTRUCTING FLOORS.

APPLICATION FILED FEB. 21.1917- Patented Jan. 151919.

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AETHUE J WIDMER, GE WEBSTER GROVE-S, MISSQURI, ASSIGNOR TO WIDMER ENGIN'EEBNGCOMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MI.- SCURI. I

APPARATUS FOR CONSTRUCTING FLOORS.

1,291,325. Specification of Letters Patent Patented J an. 14, 19519.

Application filed February 21, 1917. Serial No. 150,019.

To all whom it may concern: ing the floor after the floor forms have. Be it known that I, ARTHUR J. VVIDMER, 21 been removed, the soflit forms and jOls'YS citizen of the United States, and aresidentbeing still in place. of Webster Groves, in the county 9i, fig. Referring to the drawings, the CQhci-eic 59 5 Louis and State of Missouri, have inV'nfiTfioor slab 15 has parallel strengthenliig' ribs a, new and useful Improvement in Appa- 16 on its under side. The for-h s forsupportgretus jqp ,Qggstqugtiggfilmfifibf :wlwial-i thgzziing qhe coimmneiwhilbgiwis s tfin aresu 'fello wing is a ggggiilcgiignku .y dirlmtlqir uiiori jdisfis il fi filiidh ireur- -u:. :IylllfisFYfiMiQBmfiflfii pantietglgrlyjto thiamranged? oi ossiiiiiseifief 't llgfi iibs lfi 1n 1Q,- Q Q311 ggntegiljgi'fiqii:Oohsbtudiingmibbcdw sgfiefifallflfllififpfiiiii fiiiii fiet fiplQ -E ififi fififi:fi zibl ilklings: 03; .Qn'emr morer :rpenchiigiu ibn 'thwsfim wilieflih-ziiid the --stgr;es}l q l eighmnd btihenabuildiiigs'wiherea engthaofetlie steal pails 01; thr H661 "fonns joists, and removable means for supporting said floor forms above the level of sai oists, the space between said floors forms and joists being sufiicient to permit alining sections to be telescoped one within the next to withdraw their ends from over said oists whereby said forms can be lowered between the joists.

crete floors comprising a continuous supporting member extending crosswise of the ribs beneath their under sides for supporting them, floor forms projecting above said I supporting member and having portions extending between the ribs, the ends-of successii e fioorforms meeting above said supporting member, and means carried by said supporting member for supporting said floor forms above the level 0 said supportin being removable independently of said suporting member to permit the forms to be owered without disturbing the supporting ,member.

4. Apparatus for constructing ribbed con crete floors comprising a continuous supporting member extending crosswise of the ribs, sofiit forms extending across said supporting member in alinement with said ribs eneath their under sides for supporting them, floor forms arranged between said soflit forms and projecting above them bemg: member, and means carried by said supto tween the ribs, the ends of said floor forms overlapping each other above said supportporting member for supporting said floor forms, said form supporting means beingremovable independently of said supporting member to permit the forms to be lowered without disturbing the supporting member. 5. Apparatus for constructing ribbed concrete floors comprising joists extending crosswise of the ribs, supports for the ribs,

sectional forms supporting the floor between the. ribs, said sectional form's having their ends free of the joists, and means for sup-.

porting said sectional forms above the joists, said supporting means being removable to permit the lowering of said sectional forms member, said form supporting means between the supports for the ribs and independently of said joists.

6. Apparatus for constructing ribbed con crete floors comprising joists extending crosswise of the ribs for supporting them at intervals, sectional forms supporting the floor between the joists, said sectional forms having their ends lapped immediately over the joists, and supports for the lapped ends of said forms, said supports being supported on said joists in the spaces between the ribs and being removable to permit the lowering of said sectional forms independently of said joists.

7; Apparatus forconstructing ribbed concrete floors comprising joists extending crosswise of the ribs, soiiit forms arranged crosswise upon said joists and supporting said ribs, sectional torms supporting the floor between the ribs, said sectional forms having their ends spaced above and free of the joists, and means carried by said joists for supporting said sectional forms above the level of the joists, said supporting means being arranged in the spaces between the ribs and being movable to permit the lower- I ing of said sectional forms independently of said joists.

8. Apparatus for constructing ribbed concrete floors comprising joists extending crosswise of the ribs, sotfit forms extending across said oists lengthwise of said ribs for supporting their under sides, collapsible sectional forms arranged between said continuous forms and projecting above them for supporting the floor, the ends of successive sectional forms overlapping each other at the joists, means carried by said joists for supporting said sectional forms above the level of the joists, and means for preventing collapse of said sectional forms, said supporting means and means for preventing collapse being arranged to .permit said-sectional forms to be telescoped one within the next whereby they may be withdrawn without disturbing the joist and continuous forms.

9. Apparatus for constructing ribbed concrete floors which, comprises joists extending crosswise of the ribs beneath their under sides for supporting them, forms .for the ribs supported on said joists, sectional floor forms between said rib forms, and removable members on said joists for supporting said sectional forms above the level ofthe joists, the ends of successive sectional forms overlapping each other at the joists, whereby said sectional forms may be removed and said joists and rib forms left in place to support the floor.

Signed at St. Louis, Missouri, this 19th day of February, 19 7. 7

ARTHUR J. IVIDMER. 

